Home / 12,148,707.72-16,769,438.70-6,994,123.68

Finding the Fourth Proportional to 12,148,707.72, 16,769,438.70 and 6,994,123.68

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Solution

The fourth proportional to 12,148,707.72, 16,769,438.70 and 6,994,123.68 is: 9,654,321.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,148,707.72 : 16,769,438.70 = 6,994,123.68 : x
  2. Step 2: Convert to fraction form
    12,148,707.72/16,769,438.70 = 6,994,123.68/x
  3. Step 3: Cross multiply
    12,148,707.72x = 16,769,438.70 × 6,994,123.68
  4. Step 4: Simplify right side
    12,148,707.72x = 117,287,528,311,978.41
  5. Step 5: Solve for x
    x = 117,287,528,311,978.41/12,148,707.72
  6. Step 6: Final answer
    x = 9,654,321.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.